127mm FCD100 f/7.5 ED APO Triplet Refractor
Explore Scientific
From $1,599.00
3 stores
The Explore Scientific 127mm FCD100 f/7.5 ED APO Triplet Refractor features premium HOYA FCD100 extra-low dispersion glass in an air-spaced triplet optical design that virtually eliminates chromatic aberration for exceptional visual clarity and high-contrast imaging. With a 127mm aperture and 952mm focal length, this refractor excels at both planetary observation and deep-sky astrophotography, delivering razor-sharp views of lunar detail, Saturn's rings, and faint nebulae. The robust 2.5" HEX focuser supports up to 10 pounds of imaging equipment, while the integrated dew shield, cradle ring with handle, and Vixen-style dovetail make this a versatile grab-and-go instrument for serious astronomers and astrophotographers.
Specifications
| Aperture | 127 mm |
| ED Glass Type | HOYA FCD100 |
| Limiting Magnitude | 13 |
| Weight (Carbon Fiber Version) | 6.4 kg |
| Tube Diameter (Aluminum) | 130 mm |
| Focal length | 952 mm |
| Focuser Size | 2.5 in |
| Angular Resolution | 0.9″ |
| Dovetail Mount | Vixen-Style |
| Focal ratio | f/7.5 |
| Focuser Type | HEX Crayford |
| Tube Length with Dew Shield | 1060 mm |
| Coatings | EMD Enhanced Multi-Layer |
| Optical design | Air-Spaced Triplet Apochromat |
| Tube Length without Dew Shield | 849 mm |
| Tube Diameter (Carbon Fiber) | 145 mm |
| Diagonal Reflectivity | 99% |
| Maximum Payload | 10 lb |
| Weight (Aluminum Version) | 8.2 kg |
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